/**
 * Copyright 2020 Alibaba Group Holding Limited.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.maxgraph.structure;

public class DefaultGraphPartitioner implements GraphPartitioner {
    public final int partitionNum;

    public DefaultGraphPartitioner(int partitionNum) {
        this.partitionNum = partitionNum;
    }

    @Override
    public int getPartition(long id) {
        int partitionNum = this.partitionNum;
        int ret = (int) (id % partitionNum);
        if (ret < 0) {
            ret += partitionNum;
        }
        return ret;
    }
}
